Nanosecond laser-induced breakdown plasma radiation characteristics

Yujia Dai; Xingsheng Wang; Shangyong Zhao; Xun Gao

doi:10.1117/12.2574970

10 October 2020 Nanosecond laser-induced breakdown plasma radiation characteristics

Yujia Dai, Xingsheng Wang, Shangyong Zhao, Xun Gao

Proceedings Volume 11557, Plasmonics V; 1155712 (2020) https://doi.org/10.1117/12.2574970
Event: SPIE/COS Photonics Asia, 2020, Online Only

Conference Poster

Abstract

The plasma induced when laser interacts with matter (solid, gas, etc.) can radiate a wide range of electromagnetic waves. Its electromagnetic radiation bands range from extreme ultraviolet, ultraviolet, visible, infrared, terahertz to radio frequency microwave. Radiation in these wavelength bands has a wide range of applications, so it is of great significance to study laser plasma radiation. We studied the characteristics of nanosecond laser (1064nm, 8ns) induced plasma optical radiation. The influence of the laser parameters on the plasma radiation intensity and the time evolution of the radiation were obtained. Furthermore, we the obtained effect of the characteristics of the target on the radiation characteristics of the plasma. Finally, we calculated the electron temperature of the air plasma. The experimental results show that: the linear spectrum in the visible spectrum of laser-induced air plasma is mainly the ion spectrum of nitrogen and oxygen; as the laser energy increases the intensity of visible light radiation of air and Al plasma is gradually increasing; when the delay is 15ns, the spectral line intensity reaches the maximum; as the laser energy increases, the plasma electron temperature increases.

Citation Download Citation

Yujia Dai, Xingsheng Wang, Shangyong Zhao, and Xun Gao "Nanosecond laser-induced breakdown plasma radiation characteristics", Proc. SPIE 11557, Plasmonics V, 1155712 (10 October 2020); https://doi.org/10.1117/12.2574970

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available